What happened
On August 24, 1951, United Air Lines Flight 615 was operating a transcontinental route originating in Boston and traveling westward through Hartford, Cleveland, and Chicago before its final leg to San Francisco. The aircraft involved was a Douglas DC-6, identified by the registration N37550.
During the approach phase to Oakland International Airport, the flight encountered a catastrophic failure. The aircraft crashed into the ground shortly before reaching its destination. There were no survivors from the incident.
The total number of fatalities was 50, comprising all 44 passengers and 6 crew members aboard the aircraft at the time of the crash.